One of the most enjoyable bits of history at Coney Island and “the most romantic ride in the world.”

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

One of only two commuter aerial tramways in the United States.

Sniff the Titan Arum's rotting flesh.

Elevated freight railway turned wildly successful urban park.

A miniature rainforest is growing inside of a Midtown Manhattan office building.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

This memorial to a murdered empress took 20 years to design, then spent 30 years hidden away in storage.

A series of caves under Castle Hill that once held the prisoner Vlad Tepes, better known as Count Dracula.

London's last remaining public soapbox site has seen speeches from Karl Marx, Vladmir Lenin, and George Orwell.

Wedged between two buildings at the Great Ormond Street Hospital is this secret music installation.

A 300-year-old tea shop that brought tea to the English people, not to mention the Queen herself.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

Hamburgers are intensely proud of their tunnel beneath the river.

It's always summer at the beach inside this former airship hangar.

Once the tallest building in the world, this abandoned church is now a monument to the destruction of WWII.

A restaurant and observation deck built in a unique broadcasting antenna.

Berlin's old airport.

For patriotic Russians, this memorial honoring the Soviet soldiers who died liberating Berlin in 1945 is the most sacred location outside of Russia.

Dine at a legendary after-hours joint frequented by David Bowie and Iggy Pop.

An old tram depot transformed into a vintage car paradise.

Metro station with a claim to rock n' roll fame.

Cold war icon and onetime "hole" in the iron curtain.

This conical hill was built as a testing ground for an engineer known as the Glider King.